| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem of the impedance mismatch due to inductances induced at connections and resistors and exactly set a DC resistance value. SOLUTION: The high-frequency termination resistor (R) comprises a filmy resistor (4) provided on a dielectric board (1), a signal electrode (2) and a grounding electrode (3) at one and the other ends of the resistor (4), respectively, and a conductor film (5) formed on the same surface as the resistor (4). The film (5) is connected to any of the signal electrode (2), the resistor (4) and the grounding electrode (3) and has no influence on the DC resistance value. The resistor (R) is fixed to a high-frequency circuit board, the signal electrode (2) and the grounding electrode (3) are connected to the terminal end of a high-frequency signal transmission line (7) on the high-frequency circuit board and a ground surface (8), respectively, and then the conductor film (5) is trimmed to obtain the desired return loss frequency characteristics. COPYRIGHT: (C)2005,JPO&NCIPI
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